JP6000568B2 - Bag making machine, bag making method and pillow packaging machine - Google Patents

Bag making machine, bag making method and pillow packaging machine Download PDF

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JP6000568B2
JP6000568B2 JP2012039428A JP2012039428A JP6000568B2 JP 6000568 B2 JP6000568 B2 JP 6000568B2 JP 2012039428 A JP2012039428 A JP 2012039428A JP 2012039428 A JP2012039428 A JP 2012039428A JP 6000568 B2 JP6000568 B2 JP 6000568B2
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film
guide member
bag making
bag
product
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JP2013173554A (en
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尚史 矢口
尚史 矢口
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Omori Machinery Co Ltd
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本発明は、製品を圧縮状態でピロー包装するのに適した製袋器並びに製袋方法及びピロー包装機に関する。   The present invention relates to a bag making machine, a bag making method, and a pillow packaging machine suitable for pillow-packaging a product in a compressed state.

ピロー包装機は、原反ロールに巻き取られた帯状フィルムを連続して製袋器に供給し、その製袋器を通過させる際に筒状に製袋される。そして、製袋器の下流側に配置されたセンターシール装置にて、製袋器を通して筒状に製袋されて重ね合わされたフィルム重合端をシールすることにより筒状フィルムを形成する。また、この製袋器の上流側には製品搬送供給装置を配置し、その製品搬送供給装置から所定間隔毎に搬送される製品が、製袋器内に供給される。これにより、製品が製袋器内を通過すると、筒状フィルム内に所定間隔毎に収納されることになり、その製品は筒状フィルムとともに搬送される。そして、ピロー包装機の搬出側に配置されたエンドシール装置にて、筒状フィルムを所定間隔毎に横方向に横断するようにシール・カットすることにより、製品を内包するピロー包装体が製造される。   The pillow wrapping machine continuously feeds a belt-shaped film wound up on a raw fabric roll to a bag making machine, and the bag is made into a cylindrical shape when passing through the bag making machine. And a cylindrical film is formed by sealing the film superposition | polymerization end which was bag-formed and overlapped cylindrically through the bag making machine with the center seal apparatus arrange | positioned in the downstream of a bag making machine. In addition, a product transport / supply device is arranged on the upstream side of the bag making device, and products transported from the product transport / supply device at predetermined intervals are supplied into the bag making device. As a result, when the product passes through the bag making machine, the product is stored in the cylindrical film at predetermined intervals, and the product is conveyed together with the cylindrical film. Then, a pillow packaging body that encloses the product is manufactured by sealing and cutting the tubular film so as to cross the lateral direction at predetermined intervals in an end seal device arranged on the carry-out side of the pillow packaging machine. The

例えば製品がおむつ等の圧縮状態でパック詰めするような場合、例えば製袋器の上流側に配置される製品搬送供給装置は、おむつ等の製品を圧縮状態のまま搬送し、製袋器に対して順次供給する。すると、係る供給された製品は、製袋器に供給される帯状フィルム内に圧縮状態のまま収納され、以後は帯状フィルムの搬送に伴って移動する。   For example, when a product is packed in a compressed state such as a diaper, for example, a product transport and supply device arranged on the upstream side of the bag making machine conveys the product such as a diaper in a compressed state and supplies the product to the bag making machine. Supply sequentially. Then, the supplied product is stored in a compressed state in the band-shaped film supplied to the bag making machine, and thereafter moves with the conveyance of the band-shaped film.

圧縮状態の製品は、元の状態に戻ろうとし膨張する方向に力が発生する。一方、センターシール装置でフィルム重合端を加熱すると共に加圧して熱シールするが、このとき加熱後に冷却してシール処理を完了し、当該フィルム重合端がセンターシール部となる。冷却が不十分であると、製品の膨張力でセンターシール部の破壊が生じることがある。   A product in a compressed state generates a force in the direction of expansion in an attempt to return to the original state. On the other hand, the film polymerization end is heated and pressurized and heat-sealed by the center seal device. At this time, the film polymerization end is completed by cooling after heating and the film polymerization end becomes the center seal portion. If the cooling is insufficient, the center seal portion may be broken by the expansion force of the product.

この問題を解決するため、特許文献1に開示された物品の形成・投入・封着機への供給装置がある。この特許文献1に開示された装置では、製品を圧縮した状態に保持するサイドベルトを備え、そのサイドベルトを製袋器の上流側の製品搬送供給装置から製袋器の内側を通過し、センターシール装置を超える位置に達する長さに設定する。これにより膨張力はサイドベルトが受けるため、センターシール装置を通過したフィルム重合端にかからず、センターシール部の破断を抑制できる。   In order to solve this problem, there is an apparatus for forming / filling / sealing an article disclosed in Patent Document 1. The apparatus disclosed in Patent Document 1 includes a side belt that holds a product in a compressed state, and passes the side belt from the product conveyance supply device on the upstream side of the bag making machine to the inside of the bag making machine. Set the length to reach the position beyond the sealing device. Thereby, since the expansion force is received by the side belt, the center seal portion can be prevented from being broken without being applied to the film polymerization end that has passed through the center seal device.

特許第3321177号公報Japanese Patent No. 3321177

特許文献1に開示された発明では、サイドベルトをセンターシール装置よりもさらに下流側といった奥深くまで挿入配置し、しかも、サイドベルトは製袋器の外の上流側で片持ち支持する必要があり、装置が大型化するといった課題がある。   In the invention disclosed in Patent Document 1, it is necessary to insert and arrange the side belt deeply such as further downstream than the center seal device, and the side belt needs to be cantilevered on the upstream side outside the bag making machine, There exists a subject that an apparatus enlarges.

また、圧縮した製品と筒状フィルムとの間にサイドベルトが存在するため、サイドベルトから搬出された製品はサイドベルトの幅分膨張し筒状フィルムの内面に接することになる。サイドベルトによる圧縮が少ないと、筒状フィルムに対してパンパンに張った状態とならないおそれがある。   Moreover, since a side belt exists between the compressed product and the tubular film, the product carried out from the side belt expands by the width of the side belt and comes into contact with the inner surface of the tubular film. If the compression by the side belt is small, the tubular film may not be stretched.

さらに、片持ち支持で奥深くまで配置する特許文献1に示したサイドベルトでの挟み込みによる圧縮では、挟み込む力を余り大きくできず、圧縮率の大きい製品の供給には適さないという課題もある。   Furthermore, the compression by pinching with the side belt shown in Patent Document 1 which is arranged deeply by cantilever support has a problem that the pinching force cannot be increased so much that it is not suitable for supplying a product with a high compression ratio.

上述した課題を解決するために、本発明の製袋器は、(1)ピロー包装機に用いられる製袋器であって、帯状フィルムを筒状に製袋するための製袋器本体と、その製袋器本体内に挿入する半折りガイド部材とを備え、前記製袋器本体は、前記帯状フィルムの搬入側が製品の搬送方向の下流側に位置するように配置し、前記半折りガイド部材は、前記製袋器本体に対して前記製品の搬送方向の上流側に突出するように配置され、前記製袋器本体に供給された前記帯状フィルムは前記製袋器本体と前記半折りガイド部材の間の空間内を前記上流側に向けて移動することで筒状に形成され、前記半折りガイド部材の上流側に突出する区間で前筒状に形成された前記帯状フィルムの重合端がセンターシールされた状態に形成された中間筒状フィルムが、前記半折りガイド部材の前記上流側に突出された部位の上流側端である後端縁側で折り返され、その半折りガイド部材の内部を前記下流側に移動するように構成した。 In order to solve the above-described problems, a bag making machine of the present invention is (1) a bag making machine used in a pillow packaging machine, and a bag making machine body for making a belt-like film into a cylindrical shape; A half-fold guide member that is inserted into the bag-making machine body, and the bag-making machine body is disposed so that the carry-in side of the belt-like film is located on the downstream side in the product conveyance direction, and the half-fold guide member Is arranged so as to protrude upstream of the bag making body in the conveying direction of the product, and the belt-like film supplied to the bag making body includes the bag making body and the half-fold guide member. The overlapping end of the belt-like film formed in a cylindrical shape by moving toward the upstream side in the space between and the front cylindrical shape in a section protruding upstream of the half-fold guide member is the center The intermediate tubular film formed in a sealed state Folded back at the rear end edge is the upstream side end portion that protrudes to the upstream side of the folding and guide members, it constituted the inside of the half-folding guide member to move to the downstream side.

例えば圧縮状態の製品を半折りガイド部材内に供給すると、その半折りガイド部材内を移動する筒状フィルムと共に移動する。製品が膨張しようとした場合、その膨張力は筒状フィルムを介して半折りガイド部材にて受けられる。従って、熱シールした部位が冷却して固化されるまで筒状フィルムに膨張力がかからずセンターシール部が破断することもない。半折りガイド部材は、例えば板部材などで実現できるため、比較的薄くでき、半折りガイド部材の内形寸法と、製袋器の内形寸法の差が小さくできる。よって、圧縮状態の製品を半折りガイド部材内に供給した場合、半折りガイド部材を通過した製品が大きく膨張することも無く適宜の圧縮状態のままパック詰めした包装体を製造できる。   For example, when a product in a compressed state is supplied into a half-fold guide member, the product moves with the cylindrical film moving within the half-fold guide member. When the product is about to expand, the expansion force is received by the half-fold guide member via the tubular film. Therefore, until the heat-sealed portion is cooled and solidified, the tubular film is not expanded and the center seal portion is not broken. Since the half-fold guide member can be realized by, for example, a plate member, the half-fold guide member can be relatively thin, and the difference between the inner shape dimension of the half-fold guide member and the inner shape dimension of the bag making machine can be reduced. Therefore, when the compressed product is supplied into the half-folded guide member, the product that has passed through the half-folded guide member does not expand greatly, and a package packed in an appropriate compressed state can be manufactured.

(2)前記半折りガイド部材は、矩形の筒体であり、前記半折りガイド部材の後端縁の隅には、切欠部が設けられるとよい。このようにすると、後端縁で折り返されたフィルム部位が後端縁の角で傷が付くのを防止できる。 (2) the folding and guide members are rectangular cylindrical body, the corners of the rear edge of the folding and guide members, may notch is Ru setting vignetting. If it does in this way, it can prevent that the film site | part turned up by the rear-end edge gets a damage | wound at the corner | angular of a rear-end edge.

(3)前記半折りガイド部材は、内外に貫通する貫通孔が設けられており、その貫通孔から内側に向けてエアを噴射するエア噴射機構を備えるとよい。このようにすると、半折りガイド部材と筒状フィルムと間の接触抵抗が小さくなり、製品・筒状フィルムをスムーズに搬送できる。 (3) The half-folded guide member may be provided with a through-hole penetrating inward and outward and provided with an air injection mechanism for injecting air inward from the through-hole. If it does in this way, the contact resistance between a half-fold guide member and a cylindrical film becomes small, and a product and a cylindrical film can be conveyed smoothly.

(4)本発明の製袋方法は、上記のいずれかの製袋器を用いたピロー包装機における製袋方法であって、前記帯状フィルムを製品の搬送方向の下流側から前記製袋器本体に供給する際に、前記帯状フィルムのフィルム裏面が前記製袋器本体の内周面に対向するように供給し、 その供給した帯状フィルムを前記製袋器本体と前記半折りガイド部材の間の空間内を前記上流側に向けて移動することでその製袋器本体の内周面に沿うように筒状に製袋するとともに、前記帯状フィルムの重合端をセンターシールして裏返しの状態の中間筒状フィルムを形成し、次いで、その中間筒状フィルムを前記半折りガイド部材の後端縁側で折り返し、その半折りガイド部材の内部を前記下流側に移動することでフィルム表面が外に向いた筒状フィルムを形成するようにした。 (4) The bag-making method of the present invention is a bag-making method in a pillow packaging machine using any one of the above-described bag-making machines, and the belt-like film body from the downstream side in the product transport direction. when supplying, during the strip-fill-time of the film back surface are supplied so as to face the inner peripheral surface of the bag body, the supply was a strip film and the bag body the folding and guide members in the space as well as bag-making on the inner peripheral surface along as a tubular its bag making body by moving toward the upstream side, the state of inside out and center-sealed polymerization end of the filmstrip An intermediate cylindrical film is formed, and then the intermediate cylindrical film is folded back at the rear edge side of the half-fold guide member, and the inside of the half-fold guide member is moved to the downstream side so that the film surface faces outward. Forming a cylindrical film It was to so.

(5)前記センターシールは、前記帯状フィルムのフィルム表面同士を接触する合掌貼りとするとよい。センターシール部を合掌貼りとすると、表裏の反転に伴いセンターシール部は筒状フィルムの内部に位置し、外表面はセンターシール部が突出しない綺麗な姿態となるのでよい。   (5) It is preferable that the center seal is a palm joint that contacts the film surfaces of the belt-like film. If the center seal part is bonded to the palm, the center seal part may be positioned inside the cylindrical film as the front and back are reversed, and the outer surface may be in a beautiful state where the center seal part does not protrude.

(6)本発明に係るピロー包装機は、上記のいずれかに記載の製袋器を備えたピロー包装機であり、前記製袋器の上流側に配置される製品搬送供給装置は、製品を圧縮状態で搬送するとともに前記半折りガイド部材内に順次供給するものであり、前記帯状フィルムの両側縁のフィルム重合部をシールするセンターシール装置は、前記半折りガイド部材の前記製袋器の上流側に突出した区間に配置されるようにした。   (6) A pillow wrapping machine according to the present invention is a pillow wrapping machine including any of the bag making machines described above, and the product transport and supply device disposed upstream of the bag making machine The center seal device for transporting in a compressed state and sequentially supplying the film into the half-folded guide member and sealing the film overlapping portions on both side edges of the belt-like film is provided upstream of the bag-making device of the half-folded guide member. It was arranged in the section protruding to the side.

(7)センターシール装置は、合掌貼りするものとするとよい。   (7) The center seal device may be attached to the palm.

本発明によれば、製袋器本体を通常の配置と前後を逆向きに配置するとともに、製袋器本体内に半折りガイド部材を配置し、製袋器本体を通過させて一旦裏返しの中間筒状フィルムを形成し、その後、折り返しして通常の筒状フィルムにすると共に製品を供給することで、圧縮状態のまま製品を収納することができる。製品の膨張力は、当初は半折りガイド部材が受けるため、筒状フィルムのセンターシール部に過度な力がかかって破断することもない。   According to the present invention, the bag making machine main body is arranged in the opposite direction to the normal arrangement, and the half-fold guide member is arranged in the bag making machine main body so that it passes through the bag making machine main body and temporarily turns inside out. By forming a cylindrical film and then turning it back into a normal cylindrical film and supplying the product, the product can be stored in a compressed state. Since the expansion force of the product is initially received by the half-fold guide member, an excessive force is not applied to the center seal portion of the tubular film and the product does not break.

本発明に係るピロー包装機の好適な一実施形態を示す正面図である。It is a front view which shows suitable one Embodiment of the pillow packaging machine which concerns on this invention. その平面図である。FIG. その斜視図である。FIG. その要部拡大正面図である。It is the principal part enlarged front view.

本実施形態のピロー包装機は、上流側から製品搬送供給装置11,包装機本体12,搬出コンベア装置13の順に配置され、さらにそれらの下方にフィルム供給装置14を備えて構成される。つまり、本実施形態では、フィルムを下側から供給する逆ピロータイプとしている。本実施形態の製品1は、複数枚のおむつ1aを積層した集積体であり、しかも、積層方向に圧縮した状態のものとしている。   The pillow wrapping machine of this embodiment is arranged from the upstream side in the order of the product conveyance and supply device 11, the packaging machine body 12, and the carry-out conveyor device 13, and further includes a film supply device 14 below them. That is, in this embodiment, it is set as the reverse pillow type which supplies a film from the lower side. The product 1 of the present embodiment is an integrated body in which a plurality of diapers 1a are stacked, and the product 1 is compressed in the stacking direction.

製品搬送供給装置11は、製品1を一定間隔毎に搬送するとともに、次段の包装機本体12に順次供給するプレートコンベア装置16と、そのプレートコンベア装置16の搬送面の上方に配置される左右一対のサイドベルトコンベア装置17を備えるプレートコンベア装置16は、プレートが水平面内を移動し、製品1の下面を支持した状態で搬送する。左右一対のサイドベルトコンベア装置17で製品1を挟み込むことで、圧縮状態のまま搬送する。サイドベルトコンベア装置17は、前後両端で支持することができるため、ベルト面から大きな反力を受けても支えることができ、左右のサイドベルトコンベア装置17で挟まれた製品1は、圧縮率を大きくすることができる。さらにプレートコンベア装置16の搬出側上方に上抑えベルト18を配置する。   The product transport and supply device 11 transports the product 1 at regular intervals, and sequentially supplies the product 1 to the packaging machine body 12 at the next stage, and the left and right disposed above the transport surface of the plate conveyor device 16. The plate conveyor device 16 including the pair of side belt conveyor devices 17 conveys the plate while moving in a horizontal plane and supporting the lower surface of the product 1. By sandwiching the product 1 between the pair of left and right side belt conveyor devices 17, the product is conveyed in a compressed state. Since the side belt conveyor device 17 can be supported at both front and rear ends, it can be supported even if it receives a large reaction force from the belt surface, and the product 1 sandwiched between the left and right side belt conveyor devices 17 has a compression rate. Can be bigger. Further, an upper restraining belt 18 is disposed above the carry-out side of the plate conveyor device 16.

フィルム供給装置14は、製品を包み込む包装フィルムとなる帯状フィルム21を連続して包装機本体12に供給するためのものである。このフィルム供給装置14は、帯状フィルム21をロール状に巻き取った2本の原反ロール22を支持し、いずれか一方の原反ロール22から帯状フィルムを送り出すフィルムサプライ装置23を備える。フィルムサプライ装置23は、原反ロール22を支持する2本の回転支持軸24を備え、一方の回転支持軸24に装着された原反ロール22からの帯状フィルム21の供給が終了すると、他方の原反ロール22からの帯状フィルム21の供給に切り替え、帯状フィルム21を継続して供給するものである。また、本実施形態では、回転支持軸24に駆動モータを連携しており、その回転支持軸24を所定の回転速度で回転することで帯状フィルム21を一定速度で送り出す原反駆動としている。   The film supply device 14 is for continuously supplying the belt-like film 21 serving as a packaging film for wrapping a product to the packaging machine body 12. The film supply device 14 includes a film supply device 23 that supports two original rolls 22 obtained by winding the belt-like film 21 into a roll shape, and feeds the belt-like film from any one of the original fabric rolls 22. The film supply device 23 includes two rotation support shafts 24 that support the original fabric roll 22, and when the supply of the belt-like film 21 from the original fabric roll 22 mounted on one rotation support shaft 24 is completed, It switches to supply of the strip | belt-shaped film 21 from the original fabric roll 22, and supplies the strip | belt-shaped film 21 continuously. In the present embodiment, a drive motor is linked to the rotation support shaft 24, and the rotation support shaft 24 is rotated at a predetermined rotation speed to feed the belt-like film 21 at a constant speed.

さらにフィルム供給装置14は、原反ロール22から連続して送り出した帯状フィルム21を所定の搬送経路で搬送し、包装機本体12の搬入部位に導くためのローラを備える。このローラは、帯状フィルム21に対してテンションを掛けるテンションローラ25aや、帯状フィルム21の搬送方向を90度折り返す半折りローラ25bや、搬送をガイドするフリーローラ25cなどがある。   Furthermore, the film supply device 14 includes a roller for transporting the belt-like film 21 continuously fed from the raw fabric roll 22 through a predetermined transport path and guiding it to a transport site of the packaging machine body 12. This roller includes a tension roller 25a for applying tension to the belt-like film 21, a half-folding roller 25b for turning the belt-like film 21 in the transport direction by 90 degrees, and a free roller 25c for guiding the transport.

包装機本体12は、搬入側に製袋器本体31を備え、フィルム供給装置14から供給される帯状フィルム21を製袋器本体31に下側から供給しその製袋器本体31を通過させることにより、帯状フィルム21の中央からU字状に折り曲げる。そこで両側端同士が重ね合わされる。さらに本実施形態では、帯状フィルム21の両側端は、製袋器本体31の上面の片側サイドに寄せた位置で重合する。   The packaging machine body 12 includes a bag making machine body 31 on the carry-in side, and supplies the belt-like film 21 supplied from the film supply device 14 to the bag making machine body 31 from the lower side so as to pass through the bag making machine body 31. Thus, the film is bent from the center of the belt-like film 21 into a U shape. Therefore, both ends are overlapped. Furthermore, in this embodiment, the both side ends of the belt-like film 21 are polymerized at positions close to one side of the upper surface of the bag making body 31.

本実施形態では、製袋器本体31の帯状フィルム21の搬入口を下流側に配置する。すなわち、通常のピロー包装機に実装される製袋器は搬入口を上流側に配置し製品搬送供給装置11に対向させるが、本実施形態では前後を逆向きに配置する。なお、製袋器の形状自体は、従来のものと同様のものを用いると良い。   In this embodiment, the carry-in entrance of the band-shaped film 21 of the bag making machine main body 31 is arranged on the downstream side. That is, the bag making machine mounted on the normal pillow packaging machine has the carry-in port arranged on the upstream side and is opposed to the product carrying and supplying apparatus 11, but in this embodiment, the bag making machine is arranged in the reverse direction. In addition, the shape itself of the bag making machine may be the same as the conventional one.

よって、フィルム供給装置14から供給される帯状フィルム21は、製袋器本体31の搬入口であるピロー包装機全体の流れ方向(製品1の搬送方向)の下流側から供給し、製袋器本体31内を上流に向かって逆送することで筒状に製袋する。また、この製袋器本体31への供給に際し、帯状フィルム21は通常のものとフィルムの表裏を反対、すなわち、包装体の内側に来るフィルム裏面(通常、印刷が施されず、シーラント面)が製袋器本体31の内周面に対向するようにする。これにより、製袋器本体31を一旦通過して製袋器本体31の上流側から出て筒状に製袋されたフィルムは、包装体の外側に来るフィルム表面が内周に位置するいわゆる裏返しの状態の中間筒状フィルム35となる。   Therefore, the belt-like film 21 supplied from the film supply device 14 is supplied from the downstream side in the flow direction (the conveyance direction of the product 1) of the entire pillow packaging machine, which is the carry-in port of the bag making machine body 31, and the bag making machine body The bag is made into a cylindrical shape by reversely feeding the inside of 31 toward the upstream. In addition, when supplying to the bag making machine main body 31, the belt-like film 21 is opposite to the normal film and the front and back of the film, that is, the film back surface (usually not printed and sealant surface) that comes inside the package. It is made to oppose the inner peripheral surface of the bag making machine main body 31. As a result, the film that has passed through the bag making body 31 and exited from the upstream side of the bag making body 31 and made into a cylindrical shape has a so-called inside-out surface in which the film surface that comes to the outside of the package is located on the inner periphery. In this state, the intermediate cylindrical film 35 is obtained.

製袋器本体31の内部に貫通するように、前後が開口された筒状の半折りガイド部材37が挿入配置される。この半折りガイド部材37は、製袋器本体31の形状に合わせて角筒とし、その外形寸法は製袋器本体31の内形寸法よりも一回り小さくしている。これにより、製袋器本体31に供給された帯状フィルム21は、製袋器本体31と半折りガイド部材37の間に形成される隙間を通過して逆送する。   A cylindrical half-fold guide member 37 having an opening at the front and rear is inserted and disposed so as to penetrate through the inside of the bag making body 31. The half-fold guide member 37 is a square tube in accordance with the shape of the bag making machine main body 31, and its outer dimension is slightly smaller than the inner shape of the bag making machine main body 31. Thereby, the belt-like film 21 supplied to the bag making machine main body 31 passes back through the gap formed between the bag making machine main body 31 and the half-fold guide member 37.

また、半折りガイド部材37の前後両端は、製袋器本体31の下流側・上流側のそれぞれから突出している。特に製袋器本体31の上流側へは比較的長めに突出している。半折りガイド部材37は、製袋器本体31の下流側に突出した部位にて片持ち支持状態で保持する。   Further, both front and rear ends of the half-fold guide member 37 protrude from the downstream side and the upstream side of the bag making body 31. In particular, it protrudes relatively long toward the upstream side of the bag making body 31. The half-fold guide member 37 is held in a cantilever-supported state at a portion protruding to the downstream side of the bag making body 31.

半折りガイド部材37の製袋器本体31の上流側に突出している上方所定位置には、フィルム送りローラ(ピンチローラ)38と、センターシール装置39を設けている。センターシール装置39にて、帯状フィルム21の両側端が重ね合わされたフィルム重合部21aが熱シールされてセンターシール部となる。本実施形態では、センターシール装置39の前後両側にフィルム送りローラ38を配置し、センターシール装置39の手前側でフィルム重合端21aをしっかりと把持した状態で搬送し、さらにセンターシール装置39でシールされたセンターシール部を把持した状態で搬送力を与える。また、本実施形態ではセンターシール部は、合掌貼りとし、フィルム表面同士を接触した状態でシールするようにしている。   A film feed roller (pinch roller) 38 and a center seal device 39 are provided at a predetermined upper position of the half-fold guide member 37 projecting upstream of the bag making body 31. In the center seal device 39, the film overlapping portion 21a where both side ends of the belt-like film 21 are overlapped is heat-sealed to become a center seal portion. In the present embodiment, the film feed rollers 38 are arranged on both the front and rear sides of the center seal device 39, and the film polymerization end 21 a is transported in a state of being firmly gripped on the front side of the center seal device 39. A conveyance force is applied while the center seal portion is gripped. In the present embodiment, the center seal portion is attached to the palm and is sealed with the film surfaces in contact with each other.

半折りガイド部材37の製袋器本体31の上流側に突出している下方所定位置には、駆動ローラ40が配置される。この駆動ローラ40は、中間筒状フィルム35の底面側に接触し、上流側に向けての搬送力を与え逆送を補助する。   A driving roller 40 is disposed at a predetermined position below the half-fold guide member 37 projecting upstream of the bag making body 31. The drive roller 40 contacts the bottom surface side of the intermediate cylindrical film 35 and applies a transport force toward the upstream side to assist reverse feeding.

センターシール部が形成されて構成される中間筒状フィルム35は、半折りガイド部材37の上流側端に至るとその半折りガイド部材37の後端縁37aで折り返され半折りガイド部材37の内側空間内に導かれる。この折り返しによりフィルムの表裏が反転し、半折りガイド部材37の内側空間に至ったフィルムは、印刷等が施されたフィルム表面が外側、すなわち、半折りガイド部材37の内周面に対向する正常な状態の筒状フィルム41となる。また、本実施形態では、上述したようにセンターシール部を合掌貼りとしたため、この表裏の反転に伴いセンターシール部は筒状フィルム41の内部に位置し、外表面はセンターシール部が突出しない綺麗な姿態となる。   When the intermediate cylindrical film 35 formed with the center seal portion reaches the upstream end of the half-fold guide member 37, it is folded back at the rear edge 37 a of the half-fold guide member 37 and inside the half-fold guide member 37. Guided into space. The film that is turned upside down is turned upside down and reaches the inner space of the half-fold guide member 37. The film surface on which printing or the like is applied is outside, that is, the inner surface of the half-fold guide member 37 is normal. It becomes the cylindrical film 41 of a state. Further, in the present embodiment, since the center seal portion is bonded to the palm as described above, the center seal portion is positioned inside the cylindrical film 41 with the reverse of the front and back, and the center seal portion does not protrude from the outer surface. It becomes a beautiful figure.

半折りガイド部材37の後端縁37aの四隅は切欠部37bを形成している。中間筒状フィルム35を折り返す際に、四隅の角部に接触してフィルムに過度のストレスがかかり傷が付くのを抑制する。特に、この折り返し時に後端縁37aに接触するフィルム面は、印刷が施されたフィルム表面であるため、傷が付いて商品価値が低下、不良品になるのを未然に防止する。   The four corners of the rear edge 37a of the half-fold guide member 37 form notches 37b. When the intermediate tubular film 35 is folded back, the film is prevented from being damaged due to excessive stress on the film by contacting the corners of the four corners. In particular, the film surface that comes into contact with the rear edge 37a at the time of turning back is a film surface on which printing has been performed, so that it is possible to prevent the product value from being damaged and becoming a defective product.

また、この半折りガイド部材37内には、製品搬送供給装置11から所定の間隔で搬送されてくる製品1が供給される。よってその供給された製品1は、折り返された筒状フィルム41内に圧縮状態のまま挿入配置される。以後、筒状フィルム41の搬送に追従していっしょに搬送される。筒状フィルム41内に供給された製品1は、サイドベルトコンベア装置17による圧縮保持が解除されるため、膨張力が働き筒状フィルム41を外に膨らます方向に付勢する。本実施形態では、筒状フィルム41の外側には半折りガイド部材37が存在しているため、係る膨張力はその半折りガイド部材37で受け、製品1は圧縮状態のまま搬送され、筒状フィルム41も膨らむことが無い。よって、完全に冷却していないセンターシール部にも過度な力がかからず、半折りガイド部材37を通過するまでの間に冷却されるため、センターシール部が破断することもない。   In addition, the product 1 conveyed at a predetermined interval from the product conveyance supply device 11 is supplied into the half-fold guide member 37. Therefore, the supplied product 1 is inserted into the folded tubular film 41 while being compressed. Thereafter, the cylindrical film 41 is conveyed together following the conveyance of the cylindrical film 41. Since the product 1 supplied into the tubular film 41 is released from being compressed and held by the side belt conveyor device 17, the expansion force works to urge the tubular film 41 in the direction in which it is expanded outward. In the present embodiment, since the half-fold guide member 37 exists outside the tubular film 41, the expansion force is received by the half-fold guide member 37, and the product 1 is conveyed in a compressed state, and is tubular. The film 41 does not swell. Therefore, an excessive force is not applied to the center seal portion that is not completely cooled, and the center seal portion is not broken because it is cooled until it passes through the half-fold guide member 37.

また、センターシール装置39は半折りガイド部材37の外側に設置されているため、そのセンターシール装置39がフィルム重合部21aを挟み込んで熱シール処理する際には、製品1の膨張力が係るフィルム重合部21aにかからないため当該フィルム重合部21aが離れる方向に引っ張られることもなく、確実に所望の位置を熱シールできる。   Further, since the center seal device 39 is installed outside the half-fold guide member 37, when the center seal device 39 sandwiches the film overlapping portion 21a and performs heat sealing processing, the film 1 is affected by the expansion force of the product 1. Since the overlapping portion 21a is not applied, the desired position can be reliably heat-sealed without being pulled in the direction in which the film overlapping portion 21a is separated.

製品1は、半折りガイド部材37内を筒状フィルム41と共に移動し、製袋器本体31内を通過し半折りガイド部材37の前端より搬出される。この搬出されると、膨張力が筒状フィルム41にかかるが、センターシール部はしっかりとシール・固化されているためセンターシール部が破断することも無く筒状フィルム41はパンと張った状態を保持する。   The product 1 moves in the half-fold guide member 37 together with the tubular film 41, passes through the bag making machine main body 31, and is unloaded from the front end of the half-fold guide member 37. When unloaded, the expansion force is applied to the tubular film 41, but the center seal portion is firmly sealed and solidified so that the center seal portion is not broken and the tubular film 41 is stretched. Hold.

さらに包装機本体12は、製袋器本体31・半折りガイド部材37の下流側には、上下に配置された搬送ベルトコンベア装置43、ボックスモーション型のエンドシール装置44、ボックスモーション型のカット装置45が配置される。エンドシール装置44は、筒状フィルム41の所定位置(製品の存在しない部分)を横方向にシールする。カット装置45は、エンドシール装置44にてシールされた部位を横方向に横断するようにカットするとともに、係るシールされた部位の中央を略C型にカットする。これにより、筒状フィルム41の先端部分(先頭の製品1を内包する部分)は、分離され、略C型にカットされた取っ手部46aを備えた包装体46が製造される。   Further, the packaging machine main body 12 includes a conveyor belt conveyor device 43, a box motion type end seal device 44, and a box motion type cutting device which are arranged vertically on the downstream side of the bag making device main body 31 and the half-fold guide member 37. 45 is arranged. The end seal device 44 seals a predetermined position (a portion where no product is present) of the tubular film 41 in the lateral direction. The cutting device 45 cuts the portion sealed by the end seal device 44 so as to cross in the lateral direction, and cuts the center of the sealed portion into a substantially C shape. Thereby, the front-end | tip part (part which contains the top product 1) of the cylindrical film 41 is isolate | separated, and the package body 46 provided with the handle part 46a cut into the substantially C shape is manufactured.

そして、この包装体46が搬出コンベア装置13上を搬送される。図示省略する良否検査装置にて包装体46が検査される。良品の包装体は搬出コンベア装置13上をそのまま搬送し、不良品の包装体46は排出プッシャー装置47にて横に押し出され排出路48に排出される。   Then, the package 46 is conveyed on the carry-out conveyor device 13. The package 46 is inspected by a quality inspection device (not shown). The non-defective package is transported as it is on the carry-out conveyor device 13, and the defective package 46 is pushed sideways by the discharge pusher device 47 and discharged to the discharge path 48.

[変形例1]
上述した実施形態では、半折りガイド部材37は製袋器本体31に合わせて角筒としたが、少なくとも膨張方向の力を受けられれば良いので、必ずしも筒体にする必要は無い。例えば、断面C型としてもよいし、搬送方向に伸びるように配置した複数の帯板から構成しても良い。また、帯板の設置箇所も必ずしも上下・左右の4面に設ける必要は無く、例えば膨張方向が主に左右方向に働くとすると、係る膨張を抑える機能を実現する構成としては左右に帯板を配置する構成をとっても良い。その場合、半折りガイド部材の外側と内側で中間筒状フィルムと折り返された筒状フィルムが逆方向に移動するため、両フィルムが接触して干渉することがないようにするための構成をとる(膨張を抑制するほどの剛性は不要とすると、より薄い板部材や棒状体等を配置する)必要がある。
[Modification 1]
In the above-described embodiment, the half-fold guide member 37 is a square tube in conformity with the bag making body 31, but it is not always necessary to use a cylindrical body because it only needs to receive a force in the expansion direction. For example, it may be a C-shaped cross section or may be composed of a plurality of strips arranged so as to extend in the transport direction. In addition, it is not always necessary to provide the strip plate on the upper, lower, left, and right sides. For example, if the expansion direction mainly works in the left-right direction, the band plate is provided on the left and right as a configuration for realizing the function of suppressing the expansion. The arrangement may be taken. In that case, the intermediate tubular film and the folded tubular film are moved in opposite directions on the outer side and the inner side of the half-fold guide member, so that the two films are configured not to contact and interfere with each other. (If rigidity that suppresses expansion is not required, a thinner plate member, rod-like body, or the like is required).

[変形例2]
半折りガイド部材37の後端縁37aは、例えばR加工を施したり、接触抵抗の少ない部材を装着したり、ローラなどを設けるなど、折り返しを補助する補助部を設けると良い。
[Modification 2]
The rear end edge 37a of the half-fold guide member 37 may be provided with an auxiliary portion that assists folding, for example, by performing R processing, mounting a member with low contact resistance, or providing a roller.

[変形例3]
本実施形態の製品1は、主に左右方向に膨張力が働くため、筒状フィルム41のフィルム面が半折りガイド部材37の左右の側面に向けて付勢され、接触抵抗が大きくなる。そこで、半折りガイド部材37の側面に多数の貫通孔を設けるとともに、半折りガイド部材37の側面外側にエア供給のための通路を設け、その通路に外部からエアを送り込む。これにより、貫通孔から半折りガイド部材37の内部に向けてエアが噴射されるため、筒状フィルム41と半折りガイド部材37の左右の側面との接触抵抗が小さくなりスムーズな搬送ができるので好ましい。
[Modification 3]
Since the product 1 of this embodiment mainly has an expansion force in the left-right direction, the film surface of the tubular film 41 is urged toward the left and right side surfaces of the half-fold guide member 37, and the contact resistance increases. Therefore, a large number of through holes are provided in the side surface of the half-fold guide member 37, a passage for supplying air is provided outside the side surface of the half-fold guide member 37, and air is fed into the passage from the outside. As a result, air is jetted from the through-hole toward the inside of the half-folded guide member 37, so that the contact resistance between the cylindrical film 41 and the left and right side surfaces of the half-folded guide member 37 is reduced, and smooth conveyance is possible. preferable.

[変形例4]
本実施形態の製袋器31において製袋器本体12の筒状部分を無くす構成を採用することもできる。つまり、製袋器本体12の傘状に広がった部分と半折りガイド部材とで構成し、製袋器本体の傘状部分を通過した帯状フィルムが半折りガイドの外周面に沿って筒状に製袋されるようにすることもできる。
[Modification 4]
In the bag making machine 31 of the present embodiment, a configuration in which the cylindrical portion of the bag making machine main body 12 is eliminated can be adopted. That is, the belt-shaped film that is formed by the umbrella-shaped portion of the bag-making machine main body 12 and the half-fold guide member, and the belt-like film that has passed through the umbrella-shaped portion of the bag-making machine main body is formed in a cylindrical shape along the outer peripheral surface of the half-fold guide. It can also be made into a bag.

[変形例5]
本実施形態では、センターシールを合掌貼りとしたが、本発明はこれに限ることは無く、フィルム表面とフィルム裏面を接触した状態でシールする封筒貼りとしてもよい。このようにすると、シール剥がれに対して強くなるとともに、フィルムの重なり枚数が2枚とすくないためフィルムを折り返しやすいという効果を奏する。
[Modification 5]
In the present embodiment, the center seal is bonded to the palm, but the present invention is not limited to this, and it may be an envelope that seals the film surface in contact with the film back surface. If it does in this way, while becoming strong with respect to peeling of a seal | sticker, there exists an effect that it is easy to return | fold a film since the number of overlapping of a film is not two.

1 製品
11 製品搬送供給装置
12 包装機本体
13 搬出コンベア装置
14 フィルム供給装置
31 製袋器
35 中間筒状フィルム
37 半折りガイド部材
37a 後端縁
37b 切欠部
DESCRIPTION OF SYMBOLS 1 Product 11 Product conveyance supply apparatus 12 Packaging machine main body 13 Unloading conveyor apparatus 14 Film supply apparatus 31 Bag making machine 35 Intermediate cylindrical film 37 Half-fold guide member 37a Rear edge 37b Notch

Claims (7)

ピロー包装機に用いられる製袋器であって、
帯状フィルムを筒状に製袋するための製袋器本体と、
その製袋器本体内に挿入する半折りガイド部材とを備え、
前記製袋器本体は、前記帯状フィルムの搬入側が製品の搬送方向の下流側に位置するように配置し、
前記半折りガイド部材は、前記製袋器本体に対して前記製品の搬送方向の上流側に突出するように配置され、
前記製袋器本体に供給された前記帯状フィルムは、前記製袋器本体と前記半折りガイド部材の間の空間内を前記上流側に向けて移動することで筒状に形成され、前記半折りガイド部材の上流側に突出する区間で前記帯状フィルムの重合端がセンターシールされた状態の中間筒状フィルムとなり、その中間筒状フィルムが前記半折りガイド部材の前記上流側に突出された部位の上流側端である後端縁側で折り返され、その半折りガイド部材の内部を前記下流側に移動するように構成したことを特徴とする製袋器。
A bag making machine used in a pillow packaging machine,
A bag making machine body for making a belt-like film into a cylindrical shape;
A half-fold guide member to be inserted into the bag making body,
The bag-making machine body is arranged so that the carry-in side of the belt-like film is located on the downstream side in the product conveyance direction,
The half-fold guide member is disposed so as to protrude upstream in the conveyance direction of the product with respect to the bag making body .
The band-shaped film that has been supplied to the bag body is formed in a cylindrical shape in the space between the folding and guide members and the bag body by moving toward the upstream side, folding the half In the section protruding to the upstream side of the guide member, it becomes an intermediate cylindrical film in a state where the overlapping end of the strip film is center-sealed, and the intermediate cylindrical film of the portion protruding to the upstream side of the half-fold guide member A bag making machine configured to be folded back at a rear end edge side which is an upstream side end and to move inside the half-fold guide member to the downstream side.
前記半折りガイド部材は、矩形の筒体であり、
前記半折りガイド部材の後端縁の隅には、切欠部が設けられていることを特徴とする請求項1に記載の製袋器。
The half-fold guide member is a rectangular cylinder,
The corners of the rear edge of the folding and guide members, bag-making apparatus according to claim 1, characterized in that the notch is eclipsed set.
前記半折りガイド部材は、内外に貫通する貫通孔が設けられており
その貫通孔から内側に向けてエアを噴射するエア噴射機構を備えたことを特徴とする請求項1又は2に記載の製袋器。
The half-fold guide member is provided with a through-hole penetrating inside and outside,
The bag making device according to claim 1 or 2, further comprising an air injection mechanism for injecting air inward from the through hole.
請求項1から3のいずれかに記載の製袋器を用いたピロー包装機における製袋方法であって、
前記帯状フィルムを製品の搬送方向の下流側から前記製袋器本体に供給する際に、前記帯状フィルムのフィルム裏面が前記製袋器本体の内周面に対向するように供給し、
その供給した帯状フィルムを前記製袋器本体と前記半折りガイド部材の間の空間内を前記上流側に向けて移動することでその製袋器本体の内周面に沿うように筒状に製袋するとともに、前記帯状フィルムの重合端をセンターシールして裏返しの状態の中間筒状フィルムを形成し、
次いで、その中間筒状フィルムを前記半折りガイド部材の後端縁側で折り返し、その半折りガイド部材の内部を前記下流側に移動することでフィルム表面が外に向いた筒状フィルムを形成することを特徴とする製袋方法。
A bag making method in a pillow packaging machine using the bag making machine according to any one of claims 1 to 3,
When supplied to the bag body said filmstrip from the downstream side in the transport direction of the product, the film back surface of the band fill beam is supplied so as to face the inner peripheral surface of the bag body,
The supplied belt-like film is moved in the space between the bag-making machine main body and the half-fold guide member toward the upstream side, thereby producing a cylindrical shape along the inner peripheral surface of the bag-making machine main body. as well as bags, with center seal the polymerization end the filmstrip to form an intermediate tubular film of the reverse state,
Then, the intermediate tubular film is folded back at the rear edge side of the half-fold guide member, and the inside of the half-fold guide member is moved to the downstream side to form a tubular film with the film surface facing outward. A bag making method characterized by the above.
前記センターシールは、前記帯状フィルムのフィルム表面同士を接触する合掌貼りとすることを特徴とする請求項4に記載の製袋方法。   The bag making method according to claim 4, wherein the center seal is formed by a palm-to-grip method in which the film surfaces of the belt-shaped film are brought into contact with each other. 請求項1〜3のいずれかに記載の製袋器を備えたピロー包装機であり、
前記製袋器の上流側に配置される製品搬送供給装置は、製品を圧縮状態で搬送するとともに前記半折りガイド部材内に順次供給するものであり、
前記帯状フィルムの両側縁のフィルム重合部をシールするセンターシール装置は、前記半折りガイド部材の前記製袋器本体の上流側に突出した区間に配置されることを特徴とするピロー包装機。
A pillow packaging machine comprising the bag making machine according to any one of claims 1 to 3,
The product conveyance and supply device arranged on the upstream side of the bag making machine conveys the product in a compressed state and sequentially supplies the product into the half-fold guide member,
A pillow wrapping machine, wherein a center seal device for sealing film overlapping portions on both side edges of the belt-like film is disposed in a section of the half-fold guide member that protrudes upstream of the bag making machine body.
前記センターシール装置は、合掌貼りするものであることを特徴とする請求項6に記載のピロー包装機。   The pillow wrapping machine according to claim 6, wherein the center seal device is used for gluing.
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JPH06293304A (en) * 1993-04-06 1994-10-21 Mitsubishi Heavy Ind Ltd Film bag making apparatus
US5572853A (en) * 1994-08-15 1996-11-12 Simmons Company Method and apparatus for conditioning pocketed coil springs
US5564261A (en) * 1995-12-01 1996-10-15 The Procter & Gamble Company Method and apparatus for feeding resiliently compressed articles to a form/fill/seal machine
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